This is true I looked up in the science dictionary.
Answer:
B
Explanation:
I learned this 2 years ago
Coughing can be a symptom along with shortness of breath
Answer:
More than 50 studies were conducted.
The US Public Health Service was responsible for part of the study.
Explanation:
If the information was supported by studies by a trusted organization, then it's most likely that all the information would be reliable.
